Home / 20,434,333.11-30,616,812.59-12,330,279.51

Finding the Fourth Proportional to 20,434,333.11, 30,616,812.59 and 12,330,279.51

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Solution

The fourth proportional to 20,434,333.11, 30,616,812.59 and 12,330,279.51 is: 18,474,488.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434,333.11 : 30,616,812.59 = 12,330,279.51 : x
  2. Step 2: Convert to fraction form
    20,434,333.11/30,616,812.59 = 12,330,279.51/x
  3. Step 3: Cross multiply
    20,434,333.11x = 30,616,812.59 × 12,330,279.51
  4. Step 4: Simplify right side
    20,434,333.11x = 377,513,856,878,335.62
  5. Step 5: Solve for x
    x = 377,513,856,878,335.62/20,434,333.11
  6. Step 6: Final answer
    x = 18,474,488.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.